How far is Keystone Heights, FL from Port Saint Lucie, FL?
The driving distance from Keystone Heights, FL to Port Saint Lucie, FL is about 227.3 miles (365.8 km), with a travel time of about 03h 40m by car.
- The straight-line flight distance is about 200.1 miles (322.1 km).
- For a round trip, plan for roughly 07h 21m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 40m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Keystone Heights and Port Saint Lucie.
Turn-by-Turn Driving Directions
Step-by-step road directions between Keystone Heights and Port Saint Lucie.
-
1
Start on Walker Drive
25.6 mi · 35 min · Walker Drive
-
2
Keep slight right to continue on Reid Street
1.8 mi · 4 min · Reid Street
-
3
Continue on Memorial Bridge
5 mi · 8 min · Memorial Bridge
-
4
Turn left
23.8 mi · 31 min
-
5
Turn left onto State Street
6 mi · 9 min · State Street
-
6
Enter the roundabout and take exit 1 toward US Highway 1
35 m · 2 sec · US Highway 1
-
7
Exit the roundabout onto US Highway 1
6.3 mi · 8 min · US Highway 1
-
8
Turn left onto I 95 South: Miami
973 ft · 26 sec
-
9
Merge slight left
153.2 mi · 2 hr 45 min
-
10
Take the exit slight right toward Crosstown Parkway
1872 ft · 49 sec
-
11
Turn left onto Crosstown Parkway
4.3 mi · 8 min · Crosstown Parkway
-
12
Turn right onto Southeast Airoso Boulevard
916 ft · 21 sec · Southeast Airoso Boulevard
-
13
Turn right onto Southwest Carter Avenue
66 m · 9 sec · Southwest Carter Avenue
-
14
Arrive at your destination
0 m · 1 sec · Southwest Carter Avenue
Car Route Details
A richer read on the saved driving route between Keystone Heights and Port Saint Lucie.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 95 South
Merge slight left
153 mi · 02h 45m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny then Chance Showers And Thunderstorms leaving Keystone Heights and Mostly Sunny near Port Saint Lucie.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Keystone Heights to Port Saint Lucie?
The road trip is about 227.3 miles (365.8 km) and usually takes 03h 40m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Mims is a useful midpoint, sitting about 113.5 miles from Keystone Heights and 113.8 miles from Port Saint Lucie.
How much longer is the road route than the straight-line distance?
The direct path is about 200.1 miles (322.1 km), while the road route adds roughly 27.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 9:38 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $33.27 one way or $66.53 round trip. Estimated CO2 is about 71.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Keystone Heights and Mostly Sunny near Port Saint Lucie.
Stop Ideas Near Mims
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mims.
Sanford
Winter Park
Orlando Health/Amtrak
DeLand
Flight Path Map
This map shows the direct air route between Keystone Heights and Port Saint Lucie. Straight-line distance: 200.15 mi (322.11 km).
#1 Keystone Heights
City in Clay County, Florida, United States
| Population | 1,549 |
| Coordinates | 29.7860800, -82.0314900 |
| Altitude | 43 |
| Country | United States |
#2 Port Saint Lucie
The second most populous city in St.
| Population | 209,715 |
| Coordinates | 27.2939300, -80.3503300 |
| Altitude | 5 |
| Country | United States |
End: Southwest Carter Avenue (-80.350328, 27.294381)
Estimated Travel Time
Distance: 366 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 34m |
| 40 mph (64.37 km/h) | 05h 41m |
| 50 mph (80.47 km/h) | 04h 32m |
| 60 mph (96.56 km/h) | 03h 47m |
| 70 mph (112.65 km/h) | 03h 14m |
| 80 mph (129 km/h) | 02h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.15 | $33.27 | $66.53 |
| Mid-grade | $4.60 | $36.86 | $73.72 |
| Premium | $4.90 | $39.27 | $78.53 |
| Diesel | $4.35 | $34.89 | $69.77 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Florida · May 25, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.